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Contract OI history

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Jan 21, 2028 EXPIRATION

BTBT $1.50 Put

BTBT280121P00001500

Latest saved OI8,111Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTBT $1.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8,1294,0640 2026-10-09: 8,129 OI2026-10-13: 8,129 OI2026-10-14: 8,129 OI2026-10-15: 8,129 OI2026-10-16: 8,109 OI2026-10-21: 8,111 OI2026-10-23: 8,111 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BTBT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8,1110
Oct 21, 20268,111+2
Oct 16, 20268,109-20
Oct 15, 20268,1290
Oct 14, 20268,1290
Oct 13, 20268,1290
Oct 09, 20268,129No prior observation